Search Results - "Tweedie, Catherine A"
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Contact creep compliance of viscoelastic materials via nanoindentation
Published in Journal of materials research (01-06-2006)“…The creep compliance of viscoelastic materials such as synthetic polymers is an established metric of the rate at which strain increases for a constant applied…”
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Quantifying plasticity-independent creep compliance and relaxation of viscoelastoplastic materials under contact loading
Published in Journal of materials research (14-01-2012)“…Here we quantify the time-dependent mechanical properties of a linear viscoelastoplastic material under contact loading. For contact load relaxation, we showed…”
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A Combinatorial Library of Photocrosslinkable and Degradable Materials
Published in Advanced materials (Weinheim) (04-10-2006)“…A library of acrylate‐terminated poly(β‐amino ester)s is synthesized in parallel (see figure and inside cover) via a condensation reaction that combines…”
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Challenges and Progress in High‐Throughput Screening of Polymer Mechanical Properties by Indentation
Published in Advanced materials (Weinheim) (18-09-2009)“…Depth‐sensing or instrumented indentation is an experimental characterization approach well‐suited for high‐throughput investigation of mechanical properties…”
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On the indentation recovery and fleeting hardness of polymers
Published in Journal of materials research (01-12-2006)“…Accurate mechanical characterization of viscoelastoplastic materials in small volumes is required for the development of polymeric thin film, nanocomposite,…”
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Synthesis and Structure−Property Relationships of Random and Block Copolymers: A Direct Comparison for Copoly(2-oxazoline)s
Published in Macromolecules (07-08-2007)“…The purpose of this study was to synthesize copolymers of different molecular architecture, i.e., monomer distribution over the polymer chain, and to compare…”
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Quantifying deformation and energy dissipation of polymeric surfaces under localized impact
Published in Materials science & engineering. A, Structural materials : properties, microstructure and processing (20-08-2008)“…The mechanical response of polymeric surfaces to concentrated impact loads is relevant to a range of applications, but cannot be inferred from quasistatic or…”
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Enhanced Stiffness of Amorphous Polymer Surfaces under Confinement of Localized Contact Loads
Published in Advanced materials (Weinheim) (17-09-2007)“…For contact depths < 200 nm from the free surface of amorphous polymers, the apparent mechanical stiffness is in excess of bulk elastic properties. This…”
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Combinatorial Material Mechanics: High-Throughput Polymer Synthesis and Nanomechanical Screening
Published in Advanced materials (Weinheim) (04-11-2005)“…Combinatorial materials science requires parallel advances in materials characterization. A high‐throughput nanoscale synthesis/nanomechanical profiling…”
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